Find and replace values in Source workbook columns A & B
Sub Multi_FindReplace()
'PURPOSE: Find & Replace a list of text/values throughout entire workbook
'ORIGINAL SOURCE: www.TheSpreadsheetGuru.com/the-code-vault
'Adapted for external data
Dim sht As Worksheet
Dim fndList As Variant
Dim x As Long
Dim Source As Workbook
Dim Target As Workbook
Set Target = ThisWorkbook
Set Source = Workbooks.Open("C:\VBAX\Source.xlsm")
fndList = Source.Sheets(1).Range("A:B").SpecialCells(2).Value
Source.Close False
'Loop through each item in Array lists
For x = LBound(fndList) To UBound(fndList)
'Loop through each worksheet in ActiveWorkbook
For Each sht In Target.Worksheets
sht.Cells.Replace What:=fndList(x, 1), Replacement:=fndList(x, 2), _
LookAt:=xlPart, SearchOrder:=xlByRows, MatchCase:=False, _
SearchFormat:=False, ReplaceFormat:=False
Next sht
Next x
End Sub